According to the wiki, execute the test command and find that the camera peripheral is displaying abnormally

[DearHaha]

As you can see, if you shake a piece of paper around the camera, the screen can see changes, but this is very abnormal. How can we solve this?

https://github.com/sipeed/LicheeRV-Nano-Build/assets/174139009/4abb5f03-cdc2-4708-9b0e-806c725b23e8